Results 61 to 70 of about 150,474 (283)

Stochastically perturbed allelopathic phytoplankton model

Electronic Journal of Differential Equations, 2010
In this article we have considered a stochastic delay differential equation model for two species competitive phytoplankton system with allelopathic stimulation.
Syed Abbas, Malay Banerjee
doaj  

Almost Automorphic Solutions to Nonautonomous Stochastic Functional Integrodifferential Equations

Abstract and Applied Analysis, 2013
This paper concerns the square-mean almost automorphic solutions to a class of abstract semilinear nonautonomous functional integrodifferential stochastic evolution equations in real separable Hilbert spaces.
Li Xi-liang, Han Yu-liang
doaj   +1 more source

The Foraging Brain: Evidence of Lévy Dynamics in Brain Networks. [PDF]

PLoS ONE, 2016
In this research we have analyzed functional magnetic resonance imaging (fMRI) signals of different networks in the brain under resting state condition. To such end, the dynamics of signal variation, have been conceived as a stochastic motion, namely it ...
Tommaso Costa, Giuseppe Boccignone, Franco Cauda, Mario Ferraro   +3 more
doaj   +1 more source

Prenucleation Species Dictate Foreign Ion Incorporation in the Biomineral Precursor Amorphous Calcium Carbonate

Advanced Functional Materials, EarlyView.
ACC forms via aggregating prenucleation clusters that gatekeep its chemical composition. Ion identity steers the path: Ba and Sr substitute Ca in clusters, thereby inhibiting nucleation, with a dose‐dependent switch of Sr to induction. Mg partitions into Mg‐rich and Mg‐poor clusters; the latter form ACC, expelling Mg.
Qianyu Zhao, Patrick Duchstein, Benedikt Demmert, Thi Q. Nhi Dao, Krishnaveni Anjala, Evelyn Gruber, Franziska Gröhn, Dirk Zahn, Dorrit E. Jacob, Stephan E. Wolf   +9 more
wiley   +1 more source

Joint distributions for stochastic functional differential equations [PDF]

Stochastics, 2016
Consider stochastic functional differential equations, whose coefficients depend on past histories. The solution determines a non-Markov process. In the present paper, we shall obtain the existence of smooth densities for joint distributions of solutions, under the uniformly elliptic condition on the diffusion coefficients, via the Malliavin calculus ...
openaire   +2 more sources

Molecularly Engineered Highly Stable Memristors with Ultra‐Low Operational Voltage: Integrating Synthetic DNA with Quasi‐2D Perovskites

Advanced Functional Materials, EarlyView.
Molecularly engineered memristors integrating Ag nanoparticle–embedded synthetic DNA with quasi‐2D halide perovskites enable ultra‐low‐operational voltage, forming‐free resistive switching, and record‐low power density. This synergistic integration of customized DNA and 2D OHP in bio‐hybrid architecture enhances charge transport, reduces variability ...
Kavya S. Keremane, Abhinav Gorthy, Luyao Zheng, Chiranth C Ravi, Haodong Wu, Jiamao Zheng, Neela H. Yennawar, Shashank Priya, Rashmi Jha, Bed Poudel   +9 more
wiley   +1 more source

Invariant measures for stochastic functional differential equations

Electronic Journal of Probability, 2017
We establish new general sufficient conditions for the existence of an invariant measure for stochastic functional differential equations and for exponential or subexponential convergence to the equilibrium. The obtained conditions extend Veretennikov--Khasminskii conditions for SDEs and are optimal in a certain sense.
Butkovsky, Oleg, Scheutzow, Michael
openaire   +3 more sources

ON THE SUPPORT THEOREM FOR STOCHASTIC FUNCTIONAL DIFFERENTIAL EQUATIONS [PDF]

Demonstratio Mathematica, 1995
The support of the measure generated by the solution to some stochastic differential equation with delayed argument is studied. The obtained theorem is a consequence of the approximation theorem of Wong-Zakai type and the support theorem of Miller and Sanz-Solé.
Dawidowicz, A. L., Twardowska, K.
openaire   +2 more sources

BEOL‐Compatible Liquid‐Metal‐Printing of Ultrathin 2D Oxide Memtransistors and Its Applications in Neuromorphic Computing

Advanced Functional Materials, EarlyView.
Ultrathin 2D indium oxide memtransistors are reproducibly fabricated via a scalable liquid‐metal‐printing process under ambient, low‐temperature conditions. The devices achieve robust, gate‐tunable bipolar memristive switching with high switching ratios at a BEOL‐compatible maximum processing temperature of 300°C. Governed by trap‐controlled transport,
Sanghyun Moon, Seungyun Lee, Sunghan Cho, Donggyu Lee, Jehwan Park, Seongyun Yang, Jihyun Kim   +6 more
wiley   +1 more source

Numerical implementation of a stochastic differential equation of motion

Selecciones Matemáticas
Using the ordinary differential equation of motion it is possible to determine the position in time of a mass that moves because it is disturbed by some deterministic action.
Saúl Moisés Torres Murga
doaj   +1 more source